X43-269

Air quality. Workplace atmosphere. Determination of the number concentration of fibres by phase contrast optical microscopy. Membrane filter method.

Cette méthode s'applique à l'échantillonnage régulier et à l'évaluation d'échantillons tels qu'ils sont requis pour déterminer l'exposition des individus aux fibres et contrôler la présence de celles-ci sur les lieux de travail. Son utilisation doit se limiter à l'air des lieux de travail où les fibres inorganiques prédominent.

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